Rear I/O Connectors/Ports - Supermicro X13DDW-A User Manual

Super X13DDW-A User's Manual

2.5 Rear I/O Connectors/Ports

UID (Unit Idenfication)/BMC Reset Switch and UID/BMC Reset LED Indicators
A UID LED/BMC Reset switch (JUIDB1) is located on the rear side of the motherboard. This
switch has dual functions. It can be used to identify a system unit that is in need of service,
and it can also be used to reset the BMC settings.
When functioning as a BMC reset switch, JUIDB1 will trigger a cold reboot when the user
presses and holds the switch for 6 seconds. It will also restore the BMC to the manufacturer's
default when the user presses and holds the switch for 12 seconds.
When functioning as a UID LED switch, JUIDB1 will turn both rear UID LED (LED6) and front
UID LED (Pin 7/Pin 8 of JF1) on and off when the user presses the switch on/off.
To achieve these dual purposes, the UID LED/BMC Reset switch works in conjunction with
the BMC Heartbeat LED (LEDBMC) and front/rear UID LEDs. Please note that UID can also
be triggered via BMC on the motherboard. For more details on the UID LEDs and BMC LEDs,
refer to the tables below. Also, refer to the BMC User's Guide posted on our website at http://
www.supermicro.com for more information on BMC.
When Used as a UID LED Switch
Work w/Rear UID LED (LED6) & Front UID LED (JF1: Pins 7/8)
Rear UID LED LED6
Front UID LED Pin 7/Pin 8 (JF1)
Press the switch (JUIDB1) to turn on and off both rear and
front UID LED indicators;
UID/BMC Reset Switch (JUIDB1)
Pin Definitions
Pin# Definition
1 Ground
2 Ground
3 Button In
4 Button In
1
COM1 VGA
2
USB2/3 (3.0)
JUIDB1
C
JRU1
JVGA1
IPMI_LAN 4
BMC
CPLD
4 PCH
MH10
JSTBY1 MH11
JPCIE1
JAIOM1
JS2
P1-AIOM PCIe 5.0x16 P2-AIOM PCIe 5.0x16
JS1
JBT1
JPCIE2
JBT1
JNCSI1
MAC CODE
M.2-C1
LED4 M.2-C2
BAR CODE
2
C
BATTERY
(NVME) (NVME)
CPU1 CPU2
JL1
JNVME1
1
UID/BMC Reset Switch (JUIDB1)
Features & Settings
Blue: Unit identified
Blue: Unit identified
Power Button
Reset Button
Red+
3
(Blue LED_Cathode_UID)
NIC2 (Activity) LED
NIC1 (Activity) LED
ID_UID/3.3V Stby
JAIOM2
JF1
3
LEDPWR
X13DDW-A
J35
R1.01
1
1
8
JNVME7
JNVME5
JNVME8
When Used as a BMC Reset Switch
Work with BMC Heartbeat LED (LEDBMC)
BMC Heartbeat LED LEDBMC Green Blinking: BMC Normal
BMC Reset: Press LEDBMC: Solid green: during reboot
& hold the switch
Triggering a cold reboot; LED: solid
(JUIDB1) 6 seconds
green on during cold reboot
BMC Reset: Press LEDBMC: Solid green: during BMC reset
& hold the switch
BMC: Reset to the manufacturer's
(JUIDB1) 12 seconds
default; LED solid on during BMC Reset
JF1
1 2
Ground
Ground
Power Fail (for LED6)
3.3V
Blue+
(Red OH/Fan Fail/PWR Fail for LED5/Blue UID LED)
NIC2 (Link) LED
NIC1 (Link) LED
HDD LED
3.3V FP PWR LED
Key Key
Ground
NMI
19 20
1. UID LED/BMC Reset Switch
2. Rear UID LED (LED6)
3. Front UID LED (Pin 7 & Pin 8 of JF1)
4. BMC Heartbeat LED (LEDBMC)
56